Electric Traction For three-phase induction motors which of the following is the least efficient method of speed control? Pole changing Combination of cascade and pole changing Rheostat control Cascade control Pole changing Combination of cascade and pole changing Rheostat control Cascade control ANSWER DOWNLOAD EXAMIANS APP
Electric Traction ________ have maximum unbalanced forces. Electric locomotives All of the listed here Steam locomotives Diesel locomotives Electric locomotives All of the listed here Steam locomotives Diesel locomotives ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The coasting retardation is around 0.16 km phps 3.6 km phps 2.6 km phps 1.6 km phps 0.16 km phps 3.6 km phps 2.6 km phps 1.6 km phps ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The rate of acceleration on suburban or urban service is in the range 0.2 to 0.5 km phps 5 to 10 km phps 1.6 to 4.0 km phps 15 to 25 km phps 0.2 to 0.5 km phps 5 to 10 km phps 1.6 to 4.0 km phps 15 to 25 km phps ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Speed-time curve of main line service differs from those of urban and suburban services on following account It has longer coasting period Accelerating and braking periods are comparatively smaller All of the listed here It has longer free running period It has longer coasting period Accelerating and braking periods are comparatively smaller All of the listed here It has longer free running period ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Which of the following braking systems is used on steam locomotives? Hydraulic system Pneumatic system None of the listed here Vacuum system Hydraulic system Pneumatic system None of the listed here Vacuum system ANSWER DOWNLOAD EXAMIANS APP
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